[tex] \frac{( - 5) {}^{2} - {4}^{2} + ( \frac{1}{5}) {}^{0} }{ {3}^{ - 2} + 1} = \frac{25 - 16 + 1}{ \frac{1}{9} + 1 } = \frac{10}{ \frac{10}{9} } = 9[/tex]
